Results 71 to 80 of about 75,702 (263)
Investigation of rotor blade element airloads for a teetering rotor in the blade stall regime [PDF]
A model of a teetering rotor was tested in a low speed wind tunnel. Blade element airloads measured on an articulated model rotor were compared with the teetering rotor and showed that the teetering rotor is subjected to less extensive flow separation ...
Dadone, L. U., Fukushima, T.
core +1 more source
Development of Vertical Wind Turbine Blades Using 4D Printing of Composites
Polymer Composites, EarlyView.Vertical axis wind turbine: White blade: Commercial. Black blade: Composite. ABSTRACT This paper presents the procedure to make vertical wind turbine blades using the technique of 4D printing of composites (4DPC). The blades are made using carbon/epoxy composite materials with a fiber volume fraction of about 60%.
Emad Fakhimi, Suong Van Hoa
wiley +1 more source
Energies, 2016 Prediction of the unsteady aerodynamic flow phenomenon on wind turbines is challenging and still subject to considerable uncertainty. Under yawed rotor conditions, the wind turbine blades are subjected to unsteady flow conditions as a result of the blade
Moutaz Elgammi, Tonio Sant
doaj +1 more source
Effects of increased leading-edge thickness on performance of a transonic rotor blade [PDF]
A single-stage transonic compressor was tested with two rotor blade leading-edge configurations to investigate the effect of increased leading-edge thickness on the performance of a transonic blade row. The original rotor blade configuration was modified
Reid, L., Urasek, D. C.
core +1 more source
Development of an aeroelastic stability boundary for a rotor in autorotation [PDF]
, 2008 <p>For the present study, a mathematical model AMRA was created to simulate the aeroelastic behaviour of a rotor during autorotation. Our model: Aeroelastic Model of a Rotor in Autorotation (AMRA) captures transverse bending and teeter ...
Gillies, E.A. +2 more
core
Actuation Strategies for Underwater Jet‐Propelled Soft Robots
Journal of Field Robotics, EarlyView.ABSTRACT This review article examines jet‐propulsion mechanisms in underwater soft robotic systems, focusing exclusively on physically fabricated and experimentally validated robots. Covering research published from 2013 to 2025, this study classifies and evaluates jet‐propulsion robots based on their actuation mechanisms.
Angel Kitone +3 more
wiley +1 more source
The prediction of transonic loading advancing helicopter rotors [PDF]
Two different schemes are presented for including the effect of rotor wakes on the finite-difference prediction of rotor loads. The first formulation includes wake effects by means of a blade-surface inflow specification.
Strawn, R., Tung, C.
core +1 more source
SmartBot, EarlyView.Ionogels dynamically and functionally couple ionic liquids with polymer networks, enabling multiscale programmable deformation and motion under electrical, magnetic, optical, thermal, humidity, and chemical stimuli. This article systematically elucidates the constituent components, structural design, and multiscale actuation mechanisms of ionogel ...
Dezhou Cao +5 more
wiley +1 more source
The performance of rotary power tiller using prototype rotary blades in dry-land field [PDF]
Maejo International Journal of Science and Technology, 2008 The effect of shape of prototype rotary blades on the performance of rotary power tiller was investigated in this study. Three sets of rotors, i.e. 14-blade rotor of the Japanese C-shape blade (4.5 cm tilling width of one blade; T1), 14-blade rotor of ...
Sirisak Chertkiattipol
doaj
Effect of rotor tip clearance and configuration on overall performance of a 12.77-centimeter tip diameter axial-flow turbine [PDF]
The rotor tip clearance was obtained by use of a recess in the casing above the rotor blades and also by use of a reduced blade height. For the recessed casing configuration, the optimum rotor blade height was found to be the one where the rotor tip ...
Haas, J. E., Kofskey, M. G.
core +1 more source